<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>随机颜色</title>
</head>
<body>
    <script>
        function getRandomColor(flag=true){
            if(flag){
                let str = '#'
                let arr = ['0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f']
                for(let i = 1;i <= 6;i++){
                    let random = Math.floor(Math.random() * arr.length)
                    str +=  arr[random]
                }
                return str
            }else{
                let r = Math.floor(Math.random()*256)
                let g = Math.floor(Math.random()*256)
                let b = Math.floor(Math.random()*256)
                return `rgb(${r},${g},${b})`
            }
        }
        console.log(getRandomColor(false));
        console.log(getRandomColor(true));
        
        
    </script>
</body>
</html>